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Outcrop of the late Cretaceous La Luna Formation in the Magdalena Valley Basin in San Vicente del Chucuri, Santander-Colombia with thin-bedded foraminifera siliceous mudstone and cherts. Meter-scale faults and breccia commonly occur then providing fracture connectivity for hydrocarbon migration. Photo courtesy of Cesar Ivan Ballesteros.
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Outcrop of the late Cretaceous La Luna Formation in the Magdalena Valley Basin in San Vicente del Chucuri, Santander-Colombia with thin-bedded foraminifera siliceous mudstone and cherts. Meter-scale faults and breccia commonly occur then providing fracture connectivity for hydrocarbon migration. Photo courtesy of Cesar Ivan Ballesteros.